PPRuNe Forums - B757 Fuel Control?

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Bally Heck

11th October 2002 13:21

B757 Fuel Control?

The B757 (RR) engine fuel schematic shows inputs to the fuel control from the flaps and landing gear. The text gives no clues as to why.

Any ideas?

gas path

11th October 2002 14:59

Bally

Dunno the 757 but I'd hazard a guess at grd/flt idle.
In the air flaps up................ grd idle.
In the air with flaps down...... flt. idle.
On landing squat s/ws made engs revert to grd. idle. (after a short delay!)

comxtek

11th October 2002 16:07

Just about...

In the air, flaps up with Anti-Ice OFF...low idle
In the air, flaps in ldg config................high idle
In the air, anti-ice on...........................high idle

Bally Heck

12th October 2002 09:56

Thanks chaps. Bloody obvious when you see the answer. :(

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